Combination safe lock



May 22, 1923,

. 1 "1-145, 5,912 M. c. HOARD 4 COMBINATION SAFE LOCK Filed May 18 19224 Sheets-Sheet 1mm mm I u I INVENTUR May 22 M. C. HOARD COMBINATION sunLOOK fig Z/ v 4 l| UFII 6 I ,m H 6 z 6 4 I a 7 n w 3 m 6 5 1 m .\\.\\\V%7? m W 3 5 4 2 May22,1923. 1,455,912

M. C. HOARD COMBINATION SAFE LOCK Filed'May l8 1922 4 Sheets-Sheet 4Fatented May 22, 1923. I

MILO o. HOARD, or STRYKER, onto.

communion earn LOCK.

Application filed. May 18,

T'o a lZ whom it may concern Be it known that 1, Mine C; HoAnD, acitizen of the 'United States, and a resident of Stryli'er, in thecounty of lVilliams and- State of Ohio, have made an inventionappertaining to a Combin tion Safe Lock; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to the characters of reference marked thereon, which form a part ofthis specification.

My invention has for its object to provide a combination lock forlocking together any two members by positioning in a certain definiterelation, a number of elements whereby engaging parts between themembers may be placed in nonehgaging relation so that the members may beseparated, and wherein the elements are so constructed and supportedthat they may be easily made and easily positioned to permit thedisengagement of the engaging members. The invention particularly hasfor: its object to pro vide a combination loclr for sates of differentforms, such as ordinary standard safes having hinged doors, built-insafes, including large bank safes, small wall or fioor sates, and smallsates that may be bolted to the floor or to walls or other fixed partsof a. building or other structure, and which may be secured by meanslocated within the safe and extending through or into the supportingstructure, and thus separation from the structure is prevented.

In embodiments of my invention any number of sequential operations tosetthe combination may be used, and furthermore the number of sequentialoperations required may be readily reduced from the maximum number ofoperations. Thus the lock may be readily modified to change the numberof sequential operations required to I unlock the lock. Furtheradvantages and features of the invention will appear from the followingdescription and upon an examination of the drawings forming a parthereof.

Theinvention may be contained in locking devices of different forms, andusable for different purposes; To illustrate a prac tical application ofthe'invention I have selected a. structure containing the invention asan example of such structures and shall 1922. Serial Nd. 561,805.

describe it hereinafter. The structure selected for purposes ofillustration is shown int-he accompanying drawings.

Figure lot the drawings illustrates a side; View, 1 partly in section,of the particular structure selected as an example of structurescontaining my invention. Fig; 2 isa sectional view of the lock taken onthe broken line. 22 indicated in Fig. 5. Fig. 3 is'a view of theunderside or bottomof the lock which,'in the particular structureselected as an example,- forms the .head of the safe illustrated inFig. 1. Fig.- 4: is a sectional view of-the head taken in a planelocated substantially at right angles to the sectionshown in Fig. 2. Thesection shown in Fig. 4 is taken on the line 4l-4 indicatedin Fig. 5.Fig. 5 is a topview of a part of the head, showing in section a sleevethat interconnects theparts of the head, and also a section of'a settingplunger. Fig. 6 illustrates the underside of the upper part'of the headand also shows a section of the interconnecting sleeve and the settingplunger. Fig. 7 illustrates a sectionalview taken on the line 7-'?indicated inFig. 2'. 8 is a sectional view taken on the line 8 8 alsoindicated in Fig. 2.

1. and 2, in Fig. 1., indicate the twomem bers that are to be lockedtogether by means of. the lock involving my invention. In the form ofconstruction selected as an example of embodiments of my invention 1-indicates the body of the safe. ,As shown, .the'safe is in the form of ashell that maybe located or built in a wall or floor or otherfixed partof a structure, ormay be secured by any means to any fixed object.Preferablyv the securing means extends into the shell either through thebottom or through the side walls and so that the securing'element orpart, as the nut of a bolt or the head of a screw, is located within theshell, whereby accessibility to the securing means to disconnect theshell from the fixed obje'ct may only be obtained when the headiisunlocked and the shell is opened. In this way removal of the shell maybeaccom plished only by unlocking the head and; opening the shell.

2 is the, other member that is locked to the shell 1 and in the, form ofconstruction shown it constitutes a flanged head that closes one end ofthe shell. The head 2110 contains the locking element for locking thehead to the shell. It is, of course to be understood that the lockingelements may be located in a dooror other member that is to be locked tothe member 1. In the arrangements shown, the locking elements occupy aspace about the size of the end of the shell and consequently the headthat contains the locking elements forms not only the covering orclosing means of the shell, but also constitutes the supporting frame ofthelockingelements. The head 2 is provided with a suitable flange thatextends down around the end of the shell to completely cover the edge.In the form shown the edge of the shell that is covered and closed bythe head is located in ahorizontal plane so that the head forms a coverto the safe. The safe therefore may be provided with a flaring flange 3that forms a base for the safe, and the safe may be supported by theflange 3, it being understood, however, thatthe axis of the safe may belocated in any plane as may be desired.

In. order tobalance the weight of the head, particularly when the safeis located so that its axis extendsvertically, a balancing spring 4 isso positioned .as to counterbalance the weight of the head so that thehead may be easily lifted, and be main tained in the position in whichit is placed. In the form of construction shown the spring 1 is locatedin a sleeve 5 or in an opening -6 formed in the wall of the safe andbetween the lower end of the opening or bore 6 and a rod 7 that isconnected to the head 2. When, therefore, the head 2 is raised to anypoint the upward pressure of the spring 4 against the lower end of therod 7 will hold the head in the position that itmay be placed. This maybe done by merely using such force as is required to overcome any slightfriction that may exist between the rod 7 and the surf-ace of the holeor bore 6 and without lifting the weight of the head.

The rod 7 may be connected to the head by any suitable means. In theform shown the rod6 is provided with a flange 8 at its upper end havingbevelled side edges that fits into a channel 9 formed in an annular boss10 extending around the edge of the lower side of the head. The rod 7may thus be connected to the head by merely slipping the flange 8 intothe channel 9 and thus the weight of the head will be counterbalanced bythe spring 4 acting through the vertically disposed rod 7.

If the safe is so located that its axis is placed substantially in ahorizontal plane,

as for example, if the safe is located in or secured to aside wall of abuilding, the spring may be removed as the weight of the head will besupported by the flange of the head and the rod 7. In whatever positionthe safe may be located with refer ence to vertical or horizontalplanes, the

rod 7 operates to so support the head that the flange of the cover orclosing member The other part of the member 2 is stationary withreference to the rotatable setting part or means of the head and forms asupport for the major controlling elements of the combination lock thatare set by the setting part of the head. The part of the head containingthe major controlling elements may also contain the engaging means thatinterengage the head or member 2 with the shell or member 1. In the formshown, the engaging means, namely, the bolts, that interlock the headwith the shell are also supported in the supporting part of the head.

The setting part 11 of the head is a movable member and is rotativelyconnected to the supporting part of the'head by means of? the sleeve 12and the spanner nut 14 that is threaded onto the end of the sleeve 12.The sleeve 12 has a head 13 that is suitably shouldered for engagementwith the setting part 11 of the head and also with .rotative elementsthat are located on the sleeve. The head 13 of the sleeve is located ina recess formed in a boss and forming with the boss a frustumal shapedprojection extending from the top of the setting part of the head.

Within the sleeve 12 is located a controlling plunger 15, The plunger 15is provided with a head 16 that is movable in a recess 17 formed'in' thehead 13 of the sleeve 12. The plunger 15 is raised by a spring 18located between the bottom of the bore formed in the sleeve 12 andtheend of the plunger 15. The upward movement of the plunger 15 is limitedby a pin 19 which is connected to the plunger 15 andmoves in the slot 20formed in the sleeve 12. Normally the pin 19 is located in the upper endof the slot 20 and so as to bring the head 16 of the plunger 15substantially flush" with the upper end of the sleeve 12. The pin19'moreover, being located in the slot 20 of the sleeve 12, the plunger1:) rotates with the sleeve 12.

When the plunger 15 is in its-uppermost position, that is, in its normalposition, a recess 21 formed in the plunger 15 is located in alignmentwith a radially extending dog 22 located in'an opening formed in thesleeve 12. The dog22 is spring-pressed by a spring 23 that is locatedbetween a flange or shoulder formed on one end of the dogand the bottomof the opening formed in the sleeve so as to yieldingly press the dogoutward from the center of the sleeve. 7 A toothed ring or ratchet 24.is located below the head 13 of the sleeve and in the setting part 11 ofthe head. The ratchet 2a is provided with a plurality of inwardlyextending teeth that engage with the dog to move the dog inward when thesetting part 11 of the head is rotated relative to the sleeve 12 inonedito prevent movement of these parts relative to the ratchet.

Rotation of the ratchet 24 relative, to the setting part 11 is preventedby means of pin 25 that is secured in the ratchet 24, and

. which may be located in any one of a number of holes 26 formed in thesetting part 11 ot the head. By this means the ratchet 24 may beadjustably located within the recess of the setting part 11. The ratchet24 is pro vided with a part 27 that is flush with the inner edges of theteeth of the ratchet and forms what may be termed a smooth part in thepath of the outer end of the dog 22. Adjustability of the ratchet byinsertion of the pin 25 into any one of the holes 26 adjuste the smoothpart 27 relative to the other parts of thelockingdevice and affords oneof the means for making .up the combination for unlocking the lock. Theratchetitherefore constitutes one of the coacting elements of thecombination of the look I The supporting part 28 of the head is alsoprovided with a ratchet 29 having inwardly extending teeth. A rotatabledisc 30 is loca ed within the ratchet 29 and is provided with a dog 31that engages with the ratchet The dog 31 may be an elastic metal stripthat is secured to the disc 30 by any suitable means. It engagessequentially the teeth of the ratchet 29. g

The ratchet 29 is provided with a pin that may be inserted in any one ofthe number of holes 38 formed in the setting part of the head. Theratchet 29 may thus be ad justably located with reference-to the settingpart 28 by placing the pin 82 in any one of the holes The ratchet isprovided with the part 34 having an inner surface that is located flushwith the inner edges of the teeth oi the ratchet, which may also betermed a smooth part of the ratchet. The adjust ability of the ratchet29 relative to the setting part 28 ofthe head has for its object toadjustably locate-the smooth part 34 of the ratchet rel ative to thehead so that when the dog 31 is moved over the ratchet a clicking soundwill be produced as it passes over the teeth of the ratchet, while aperiod of silence will be produced while the dog is passing over thesmooth part of the ratchet.

The ratchet 29 is so disposed in the part 28 of the head that itsteethare placed in engaging relation to the dog 31 when the dog 31 is movedin a direction opposite to that in -which teeth of the ratchet 24 willthe .dog 23. YVhen. therefore, the

setting part 11 of thehead is rotated in one direction the dog 22engages the ratchet 24 anc causes rotation of the sleeve 12 and the dog31 moves over the ratchet 29, maliing a clicking sound as the dog passesthe teeth of the ratchet, the supporting part of the head. remainingstationary relative to the setting part 11 W hen, however, the settingpart 11 is moved in the opposite direction the. dog 22 moves over theteeth of the ratchet 2 1, producing a clicking sound while the disc 30,is connected to the ratchet 29 through the dog 31 and consequentlyrotation of the disc 30 is prevented,

The disc 30 is provided with an eccentric boss or cam 3.5 that issurrounded by aring 36. The ring 36 is pivotally connected to a partthat is moved transverse the head by the movable member or settingpartll of 'the head to engage. locking elements lor rings that aremanipulated'by movements also of the movable member or setting part 11of the head to cause disengagement of the elements orrings with thelocking bolts. The part or slide 37 is connected to the rings 86 bymeans of the pin 38. The slide 37 is located in a channel 39 formed inthe setting part 11 of the head. When, therefore, the setting part 11 ofthe head is rotated in one direction and so that the dog 22 moves overthe teeth 23 and the disc 30' is-held in position by the dog 31 theeccentric boss or cam 35 operates to move the slide 87 in the channel 39in a radial direction relative to the setting part 11 of the head. Theslide 37' will therefore be located indifferent positions according tothe angular movement ofthe setting part 11 of the head. If the settingpart 11 of the head is completely rotated the slide 37 will move acrossand back in its channel 39. The angular movement of the setting part ofthe head 11 relative to the supporting part 28 may be determined bycounting the clicks that are produced by the dog 22 as it moves over theratchet 24:. For'chnveniently (letermining this angular relation betweenthe two parts; the smooth part 27 of the ratchet 29' will be adeterminingstarting point for measure and after a period of silence during continued movement oi the setting part 11 of the head the firstclick will be the first count and thereafter the setting part oi thehead may be rotated to any point desired by merely counting the clicksproduced after the period of silence. Thus the position of the slide maybe determined by the number of clicks that are produced by the dog22subsequent to the period of silence produced by the smooth part 27 ofthe ratchet 29.

The slide 3'? is secured in position on the setting part 11 by means ofthe disc 48 which is pressed onto the sleeve 12. The disc 30 is locatedb tween the sliding plate 37 and the disc 48. The sliding plate is alsoprovidedwith a slot through which the sleeve 12 extends. Consequentlythe disc 30 and the sliding plate 87 are connected to the setting part11 and the slide 37 rotates with the setting part ll. while rotation ofthe disc 30 and consequently of the can part 2-55 is controlled by thedog 31 and is dependent upon the direction of rotation of the settingpart 11. i

Theslide 37 may be provided with one or more pins, such as the engagingpins 40 and 41. The supporting partofthe head 28 is provided with aplurality of lock engaging elements or rings 42, 43 and 44 that alsohavev engaging pins 45, 46 and 47. The rings 42, 43 and 44 are locatedincircular channels formed in the supporting part and in which the rin arefreely rotatable. The rings 42, 43 and 44 are each provided with aplurality of holes. 50 into any of which bodies such as the pins 45, 46and 4? may be inserted. The pins may be thus adjustably located relativeto the lock engaging elements. This constitutes three additional I meansof adjustment for making upcombinations for unlockin the lock. The adbustments of the pins 45, 46 and 4( may thus be permutated with theadjustments of the ratchets 24 and 29 to produce any one of a very largenumber of combinations. -These ad usting elements of the lock afford are marlrable range for selection of any combination whereby the safe maybe opened.

This range of selection is in the neighborhood of two million.

When the movable member or setting part 11 oi the head has been rotatedin one direction, and While the disc 30 is held by the dog 31 tomove thepart or slide 37, the pins on the slide are moved over the rings orelements that engage the locking means and Which are located in thesupporting part 28. Vfhen, therefore, the setting aart 11 has moved acertain angular dista ce the slide 37 has also been .moved radially acertain distance. Movement of the slide is such asto place one or theother of the pins lo cated on the slide over one or the other of therings so that upon subsequent rotation of the setting part 11 or" thehead, the pin of the slide located over that ring will engage the pm ofthat ring and cause the rotation of the ring with the setting part 11 ofthe head. The degree of movement ot the part or slide 87 in order toplace that particular pinoverthat particular ring is determined bytheangular position ofthe rack 24 relative to the rotative part 11, thatis, the angular position of the smooth part 2? relative to the axis ofrotation of the setting part 11. Setting ofthe rack 24 in differentangular positions r'elativeto. the setting part 11 the head changes theangula r distance or movement requisite in order to bring that pinoverthat particular ring, and consequently more or less number of clicks oithe dog 22 is required in order to bring that particular pin over thatparticular ring.

In the particular form shown, the pin 41 may be located over the ring42'by counting twenty-nine clicks produced by th dog 22 upon left-handrotation of the setting part 11 because of the particular adjustment oftheratchet 24 in the setting part 11 of the head.

The setting part 11 of the head is now rota-ted in a right-handdirection since setting of the slide 37 is obtained by a left-handrotation. .ltotation to the right causes the pin that was setover anyparticular ring to. engage the pin o1 that ring at some point in thecomplete revolution of the setting part of the head. In order to placethefring in a certain definite position in order that the engaging meansbetween the members 1 and 2 may be disengaged theclicks that are 1'produced by the dog 31 are counted from the period of silence producedby themovement of the dog 31 overthe smooth part 34 of the ratchet 29.The angular movement or" the setting part 11 of the head is thendetermined by the position in which the smooth part 34 of the ratchet.29 is located relative to the supporting part '28 of the head. Asthedisc is rotated by the head 11 it is connected to the sleeve 12through the dog 22 and the pin 19 which is located in the slot 51 formedin the disc 30. Since the disc 30 is rotated with the setting part 11,the slide 37 is not moved radially during the time that the ring caughtby the slide is moved by rotation of the setting part 11. During therotation of the setting part 11 to set the ring that is caught by theslide in its particular position the clicks produced by the dog 31 arecounted, beginning with the first count after the period of silenceproduced by the dog 81 moving over the smooth part 84. This places thering in'the desired position by means that are operated according to theadjustments ofthe ratchets 24 and 29.

The other rings are likewise placed in corresponding positions to permitmovement of the means that interengage the members 1 and 2. Thesettingpart ll is again r0- tated in such a direction as to againproduce the clicking of the dog 22. The clicks are counted at-once untila predetermined number is reached, when one of the pins of the slide 37will be placed above another of the rings located in the annularchannels of the supporting part 28. Again reverse rotation of thesetting part 11 will cause the clicking of the dog 31 and some where ina complete revolution the engagement between the pin of the slidelocated above that particular ring and the pin of that particular ringtakes place. When, therefore, the dog 31 reaches and passes over thesmooth portion of the ratchet 29 the clicks may be counted, and thus thering may be placed also in such a position that will release theengaging means between the members 1 and 2 when the predetermined numberof clicks have been produced, as for example, the pi-n 4:0 will beplaced over the ring 13 when the setting part of the head has beenrotated to the left so as to produce seven clicks. It is then rotated tothe right one complete revo lution in. orderthat the pin 10 may pick upthe pin of the ring 43 and then after the period of silence the clicksproduced'loy the dog 31 are counted. When, therefore, twenty-two clickshave been made the ring 43 is placed in position such that the engagingmeans will be released also from this ring. I

The remaining ring 44: is also placed in position to release theengaging means by the sameprocess. The setting part 11 is rotatedcounter-cloclr-wise a certain number according to the position of thepins on the slide 37. The pin 41 in the form shown may now be placed inposition for engaging the pin of the ring 4 1. This is obtained bycountingthe clicks that are produced by the dog 22 in thecounter-clockwise movement. In the particular setting of the partsshown, the pin 41 is placed over the ring 4:4- byOIll1t6l'-Cl.0('l(VVlS(-) movement and upon three clicks of the dog 22.The setting part 11 is now rotated clockwise one complete revolution,which will cause the dog 41 to pick up the pin of the ring 441 and afterthe period of silence caused by the dog 31 moving over the smooth part34 ot the ratchet 29 and upon the production of forty-three clickscaused by the dog 31 the ring 44. will be placed in position forreleasement or the engaging means between the members 1 and 2; V

' It will thus be seen that changes of the number of clicks required toposition the slide37 may be obtained by changing the position of theratchet 24 and the setting of the rings may be altered by changing theposition of the pins in the rings and changing of the positionbot theratchet 29, which gives an exceedingly large number of combinations, anyone of which may be used to' place the rings in position to release theengaging means between the members 1 and '2.

In order that the setting part 11 may be placed in juxtaposition to thesupporting part 28, annular channels 68 ma beformed in the setting part11 in which the pins 45, t6 and 47 are located.

The rings being now so placed that the engaging means is released, itmay now be withdrawn and the two parts may be unlocked. This may beaccomplished by merely drawing one or more bolts that are released bythe rings, as by a hand lever or by any other means. In the form of theinvention shown it is accomplished by the rotation of theset-ting part11 of the head.

In order to prevent 'thepins of the slide, that has set the rings intheir positions of releasement of the locking means, fromdisturbing therings, the slide is moved by lefthand rotation of the head 11 a shortdistance, which will so place the pins of the slides such that theywill. not engage with the pins of the rings. Counter-cloclm'ise movementthat produces three or t'ourclicks in the dog 22 will thus position theslide so that the rings will not be disturbed.

When the pins of the slide are placedin position to clear the pins oftherin'gsthe locking means may be operated to unlock the members 1 and 2.In order to operate the locking means the head 11 is rotated clockwiseuntil the plunger 15 can be pressed down against the spring 18, thatis,.until the pin 52 registers with the slot 53, whereupon the pin 52may pass below the inwardly ex tending flange 54;, and rotation of theh'ead 11 while the plunger 15 is being held down will place the pin 52under the stag 54, which will hold the pin. 15 down. This also placesthe pin 52 in the slot 55 which is located in a channelled ring 56.Rotation of the head 11 after the pin 52 enters the slot 55 causesrotation of the ring 56. T

. The channel 57 of the ring 56 isso termed as to produce a double cam58 against which the inner ends of the locking bolts 59 are pressed bythe springs 60. The springs 60 press against pins 69 that are secured tothe bolts 59. .The pins protrude into openings 70 formed inthesupporting part 28 of the head. The inner ends of the bolts .59 lit inthe channel 57 and thus rotation ofthe bolts 59 is prevented. When theplunger 15 is pressed down the recess 21 is moved below the inner end ofthe dog 22 and consequently there can be no endwise movement of the dog22 since its inner end abuts against the plunger 15. This looks thesleeve 12 to the setting part 11 of the head. Also movement of the pin52 through the slot '53 disconnects the plunger 15 from thedisc 30 andthus connects the'setting part 11 of the head. directly to the double cm armed by the channel 57,

After engagement has thus been established between the double cam 58 andthe setting part 11 rotation of the setting part will cause rotation ofthe double cam and the springs 60 will move the locking bolts 59 inwardas the shorter radii of parts of the cam are brought in alignment withthe axis of the bolts. The movement of the double cam 58 is limited bythe pins 64 and 71 which engage an end of one or the other of the bolts59. One pin 71 engages the end of one bolt when the bolts are inunlocking position and the pin 64 engages the end of the other bolt 59when the bolts are in locking position. The ends of the bolts 59 when inlocking position enter 'holes 61 formed in the member 1, that is, in theshell or wall or fixed part of the safe. \Vhen, however, the double camhas been rotated sufficiently thelocking bolts 59 are drawn from theholes 61 and the members 1 and 2 are unlocked and the member containingthe head may be moved from the other memher, that is, the safe may beopened.

In order to release the bolts so that they can be withdrawn from theholes the rings 42, 48 and 44 are provided with notches 62 that conformto the shape of the bolt and the bolts are provided with notches 63 thatconform to the shape of the rings where the surfaces of the bolts andthe rings intersect,

so that when the bolts are in locking posisition that the surfaces ofthe recessescoincide with the surfaces of the rings 'of the bolts I thebolts cannot be withdrawn from their between the surfaces of therecesses of the rings and the surfaces of the bolts. Consequently, whenthe bolts are in this position the rings cannot be moved, which willtherefore obviate the necessity of going through the sequentialoperations in order to lock the safe.

Kit is desired to temporarily secure the members 1 and 2 together it maybe done by merely rotating the setting part 11 in a direction to causethe bolts 59 to enter the holes 61. This will place the pin 52 in linewith the slot 53, which will permit the plunger 15 to rise. The settingpart 11 may then be rotated to the right as much as may be desired. Ifit is desired to then open the safe, all that is necessary is to rotatethe setting part 11 to the right until the pin 52 enters the slot 53 andalso enters the slot 55 and engages the cam ring 56. This'will causerotation of the cam ring and permit the locking bolts to be pressedinward by the springs 60, which will unlock the safe.

In order to permanently lock the safe the cam ring 56 is rotated untilits rotation is stopped by the pin 64, which will force the bolts 59into the holes 61 and at thesame time the pin 52 will be forced upwardfrom the slot 55 through the slot 53 and enter the space 65. At the sametime the pin 19 enters the slot 51 in the disc 30, which establishesconnection between the sleeve 12 and the disc 30. Also the recess 21 isplaced in alignment with the dog 22 to permit free endwise movement ofthe dog 22 except as it is yieldingly pressed by the spring 23.Counter-clockwise rotation of the head 11 will cause movement of theslide 37 and cause one of the pins of the slide 87 to en-' gage one ormore of the pins of the rings 42, 43 and 44 and thus cause the ringswhose pins are thus engaged to move through one or more of the slots 68of the bolts 59 and thus secure the bolts in their locking posi tions. 1

In order to unlock the members 1 and 2 the sequential operationsheretofore described must necessarily be performed. It is preferable tolocate the bolts 59 in radii that form an angle slightly greater or lessthan 180 for the reason that if they were in diametrically oppositepositions the recesses of the rings could otherwise be placed in any oneof two positions in order to enable the bolts to be withdrawn fromlocking position. Bylocating the bolts at an angle other than 180 therings: must be placed in the definite position described in order thatthe bolts may be withdrawn.

To briefly describe the locking device illus trated in the drawings, andwhich has been selected as an example of embodiments of my invention,the setting part of the head 11 is rotated in one direction as for eXample, counter clockwise to a certain angular position as is predeterminedby the position of the ratchet 24, which position is indicated by theproduction of a certain number of clicks by the dog '22 after it haspassed over the smooth portion 27 of the ratchet, that is, after it haspassed through the period of silence produced by the smooth portion 27.This also causes the same rotation of the disc 30 which moves the slideby reason of the connection of the slide to the cam of the disc throughthe eccentric ring. The slide is so positioned that one or other of itspins is placed over one ofthe' rings located inthe supporting part 28 ofthe head. Reverse rotation of the setting-part 11 causes the pin of theslide that has been placed over the particular ring to engage with thepin of the ring. When the setting part 11 has been rotated one completerota-' period produced by the'smooth portiona'ot the ratchet 29. Therotation is continued until the ring has been placed in a definiteposition which is predetermined by the set ting or" the pin 03": thering and thesettinp; of the ratchet 29. This predetermined position isdefined by the number of clicks that are produced by the dog 31 after itpasses the smooth part of the ratchet 29. This places the ring inposition such that it releases the locking bo'lts59. The setting part 11is now rotated counter-clockwise and the clicks produced by the dog 22are counted, which places one or the other of the pins of the slide in adefinite position, that 'is,,in position to engage the pin of anotherring when the setting part 11 is rotated clockwise. This position isalso determined by the number of clicks produced by the dog The settingpart 11 is again rotated clockwise one complete rotation so as to causethe sin oil? the slide to enea 'e the in Q to Continued movement afterone complete revolution brings the dog 31' over t'he'smooth part of theratchet 29. Continned rotation counting the clicks produced by the dog ldetermines, the angular position of the ring that has been caught up andis being moved by rotation of the setting part '11 of the head. Thispredetermined position that will produce releasement of the bolts 59 isdetermined by the number of counts, which maybe established by settingthe pin of the ring in any one of the holes of the ring.- The settingpart 11 is again rotated counter-clockwise, the angular position beinp:determined by the number of of the ring? clicks produced by the dog22.which again.

defines the position of one of the pins of the slide and when'therequired number of clicks have been produced the pin is positioned overthe remaining ring, if there are but three rings, it. being; understoodthat any number of rings be used in the combination. The setting part 11of the head is again rotated'onc complete revolution so as to makecertain that the pin of the ring has been caught by the pin of the slideand after the dog); passes through the period of silence the clicksproduced by the doc; 31 are counted and when the predetermined number ofclicks have been produced. which will be according to the location 01.the pin of that ring relative to the recesses or notches formed in thering. This ring will then also be placed in the position of releasementof the bolt 59. The rings having now been placed so that the recesses 62and 63 of the rings and the bolts register with one another, the boltsmay be withdrawn from the holes 61 This may be accomplished by anysuitable means. In the form shown, the setting The setting l more elemeuts part 11 is'rotatedclockwise while the plunger 15 is pressed down soas to cause the pin 52 to engage with the double cam of the 56,whereupon further movement will cause the springs 60 to move the bolts"'59 inward and out of the holes 61 as the position such that it will bemaintained in position of releasement of the bolt. This may beaccomplished in any suitable way. In the form of the inventlonshown,open 66 may be formed in the supporting part 28 of the head and one ormore of the, rings may be tapped at points that are in alignment withthe openings 66 when the recesses 62 of the rings are in position torelease the bolts 59, such as at the point 67. Threaded pins may bescrewed into the tapped opening 67 in order to secure one or more of therings in position. This will obviate the necessity of making: thenecessary counts to cause engagement of the pin of the slide with thepin of that particular ring, and also to step the ring around to therequired position. l I

I claim I i 1. In a combination lock, a locking means, a. rotatablemember, part rotated and moved relative to the rotatable member by therotataltile member, one or more elements for gingr the locking means andengaged and operated by the said part. y

2; In a combination look, a lockingmeans, a rotatable member"- a partmoved relative to the rotatable member by the rotatable member when therota able member is rotated in one direction, and rotated with therotatable member when the rotutuble member is-ro' tater l in the op:direction, one or more elements for on ting); the locking means and opated l'ry'the s id part to place the elements in disengraein relation tothe lockinct means.

3. In combination lock. locking means, rotatable 'u'iouibcix a pa tmoved relative to the rotatable member by the rotatable memher when therotatable member is rotated in direction, and rotated with vthe rotatable member wh the rotatable member is rotated in the oppositedirection, one or for eng'a ei n gr th e loclti n t means and operatedby the said part when the rotatable member is moved in the said otherdirection to place the elements in disengaging; relation to the lockingmeans.

4:. In a combination lock locking means, a rotatablememheix a partmovable transverse to the rotatable member by the rotatable member whenthe rotatable member is rotated in one direction, and rotated by therotatable member when the rotatable memher is rotated in th otherdirection, a plu- .rality of elements for engaging the locking 1 meansand operated by the said part when the rotatable membcris rotated in thesaid other direction to place the elements in disengaging relation tothe locking means.

5. In a combination lock, a'locking means, a movable member, a partmoved relative to the movable member when .the movable member is movedin one direction, and moved with the movable member when the movablemember is moved in the'othe'r direction, one

ormore elements for engaging the locking,

means and operated. by the said part when moved in the said otherdirection to CllS11-' gage the elements from the locking means.

6. In a combination look, a locking means,

a'movablemember,apart/movablein two directions by the movable member, aplurality oi elements for en aging the locking means andengaged by thesaid part when moved in one direction, and moved by the part todisengage the locking means when moved in another direction.

7. In a combination lock, a locking means, a movable member, one or moreelements for engaging the locking means, and having bodies adjustablylocated relative to the said elements, a part moved by the movable memher into position to engage the bodies when the part is moved in onedirection and to engage and move the elements when the part is moved inanother direction to disengage the elements from the locking means.

8. In a combination look, a locking means,

one or more elements for engaging the look ing means, a part movable intwo directions for engagingthe elements when moved predetermineddistances in one direction, and for moving the elements to disengage thelocking means when moved predetermined mined distances in the otherdirection, an

adjustable means for indicatingthe distances moved by the said part inone direc-- tion, and a second. adjustable means for indicating thedistances moved by the part in the other direction.

10. In a combination look, a locking means, arotatable member foroperating the locking means, one or more elements for engaging thelocking means to preventthe opera:

tion of the locking means, the elements having adjustable bodies, amovable part operated by the rotatable member for engaging theadjustable bodies when the movable part is moved predetermineddistances, and for moving the elements to disengage the looking meanswhen moved PFQClQtEEYIDiIlQd distances after engaging the bodies.

11. In a combination look, a locking means.

a rotatable member for operating the locking means, one or more elementsfor engaging the locking means to prevent the operation of: thelocki'ngmeans, the elements having adjustable bodies, a movable partoperated by the rotatable member for engaging the adjustable bodies whenthe movable. part is moved predetermined distances, and for moving theelements to disengage thelocking means when moved predetermineddistances after engaging the bodies, means for indicating the distancemoved by the movable part to engage the bodies, and means for indicatingthe'distances moved by the elements to disengage the locking means.

12. In a combination lock, alocking means, a rotatable setting member, aslide movable across the setting member and moved crosswise by thesetting member when the setting member is moved in one direction, one ormore elements for engaging the locking means and engaged by the slidewhen moved a predetermined distance across the setting member andoperated by the said'setting member when moved in the opposite directionto disengage the elements from the locking means.

13. In a combination look, a locking means,

a rotatable setting member, a slide movable across the setting memberand moved crosswise by the setting member when the setting member ismoved in one direction, aplurality of rings for engaging the lockingmeans and engaged by the slide when moved a predetermined distanceacross the setting member and operated by the said setting member whenmoved in the opposite direction to disengage the rings.

In testimony whereof I have hereunto signed my name to thisspecification.

MILO 0. BOARD.

